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laila [671]
3 years ago
12

Find the unit rate pls.

Mathematics
1 answer:
FrozenT [24]3 years ago
4 0

Divide 78 cents by 13 inches to get the cost per inch:

0.78 / 13 = 0.06 ( 6 cents per inch)


Now multiply the cost per inch by 22 inches:

22 x 0.06 = 1.32


It will cost $1.32

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What are the solutions to log (x² + 8) = 1 +logo(x)?
kherson [118]

Answer:

x = 9.125 and 0.875

Step-by-step explanation:

Given the expression

log (x² + 8) = 1 +log(x)?

This can also be written as;

log (x² + 8) = log 10 +logo(x)

log (x² + 8) =  log(10x)

(x² + 8) =  (10x)

x² -10x + 8 = 0

Factorize;

x = 10±√(-10)²-4(8)/2

x = 10±√100-32/2

x = 10±√68/2

x = 10±8.25/2

x = 10+8.25/2 and 10-8.25/2

x = 18.25/2 and 1.75/2

x = 9.125 and 0.875

4 0
3 years ago
5.44 Teaching descriptive statistics: A study compared five different methods for teaching descriptive statistics. The five meth
maria [59]

Answer:

The null hypothesis is that all the different teaching methods have the same average test scores.

H0: μ1 = μ2 = μ3 = μ4 = μ5

The alternative hypothesis is that at least one of the teaching methods have a different mean.

Ha: at least one mean is different. (μ1 ≠ μi)

Step-by-step explanation:

The null hypothesis (H0) tries to show that no significant variation exists between variables or that a single variable is no different than its mean. While an alternative Hypothesis (Ha) attempt to prove that a new theory is true rather than the old one. That a variable is significantly different from the mean.

For the case above, let μ represent the average test scores for the teaching methods:

The null hypothesis is that all the different teaching methods have the same average test scores.

H0: μ1 = μ2 = μ3 = μ4 = μ5

The alternative hypothesis is that at least one of the teaching methods have a different mean.

Ha: at least one mean is different. (μ1 ≠ μi)

7 0
2 years ago
The scores on a standardized test are normally distributed with the mean of 750 and standard deviation 70. Find the probability
mafiozo [28]
Hey the answer is C.47.7 
goodluck!
3 0
3 years ago
Read 2 more answers
On Saturday, 15,598 people attended a music festival. How does the value represented by the 5 in the hundreds place compare with
Vadim26 [7]

Answer:

Gahsbdhhajauhdussjm

Step-by-step explanation:

Jajasjsjsjzjbdbsnsndjjz

6 0
2 years ago
Read 2 more answers
Write the equation of a line that has a slope of 4 and goes through the point (1, -2)
Genrish500 [490]
Mark me as brainliest please! :)

The point-slope form of equation is
y
+
4
=
6
⋅
(
x
−
3
)
Explanation:
Point - Slope form of a linear equation is
(
y
−
y
1
)
=
m
⋅
(
x
−
x
1
)
Given : Slope
m
=
6
, Point
(
x
1
,
y
1
)
=
(
3
,
−
4
)
The point-slope form of equation is
y
+
4
=
6
⋅
(
x
−
3
)
8 0
3 years ago
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